Red Hat has released Red Hat Enterprise Linux 5.3, the third update to the current stable version. "In the third update to Red Hat Enterprise Linux 5, customers will receive a wide range of enhancements, including significantly increased virtualization scalability, expanded hardware platform support and incorporation of OpenJDK Java technologies. Customers with a Red Hat Enterprise Linux subscription will receive the Red Hat Enterprise Linux 5.3 update, which is available for immediate download from Red Hat Network." More information including a short video explaining the new features via the subscription model is available here.